M-420(W)'s 2550-2579

Number

Class

Built Date

Renumbered

Retired

Notes

2550

MR-20b

1974

to 3550 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2551

    MR-20b

    1974

    to 3551 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2552

    MR-20b

    1974

    in 1984

  • wide nose
  • weight and fuel capacity reduced,
  • 2553

    MR-20b

    1974

    to 3553 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2554

    MR-20b

    1974

    to 3554 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2555

    MR-20b

    1974

    to 3555 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2556

    MR-20b

    1974

    to 3556 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2557

    MR-20b

    1974

    to 3557 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2558

    MR-20b

    1974

    to 3558 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2559

    MR-20b

    1974

    to 3559 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2560

    MR-20c

    1976

    to 3560 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2561

    MR-20c

    1976

    to 3561 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2562

    MR-20c

    1976

    to 3562 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2563

    MR-20c

    1976

    to 3563 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2564

    MR-20c

    1976

    to 3564 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2565

    MR-20c

    1976

    in 1987

  • wide nose
  • weight and fuel capacity reduced,
  • 2566

    MR-20c

    1976

    to 3566 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2567

    MR-20c

    1976

    to 3567 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2568

    MR-20c

    1976

    to 3568 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2569

    MR-20c

    1976

    to 3569 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2570

    MR-20c

    1976

    to 3570 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2571

    MR-20c

    1976

    to 3571 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2572

    MR-20c

    1976

    to 3572 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2573

    MR-20c

    1976

    to 3573 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2574

    MR-20c

    1976

    to 3574 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2575

    MR-20c

    1976

    to 3575 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2576

    MR-20c

    1976

    to 3576 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2577

    MR-20c

    1976

    to 3577 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2578

    MR-20c

    1976

    to 3578 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,
  • 2579

    1976

    to 3579 in 1986-87

  • wide nose
  • weight and fuel capacity reduced,